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Answers. = mc∆T, where Q = heat energy, m = mass, and ∆T = change in temp. Remember, ∆T = (Tfinal – Tinitial). Show all work and proper units. A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.
Temperature Change and Specific Heat The amount of energy that raises the temperature of 1 kg of a substance by 1 K is called the specific heat of that substance. The symbol for specific heat is c. If W = 0, so no work is done by or on the system, then the heat needed to bring about a temperature change ∆T is
The temperature of an object can be measured using a thermometer which is based on a suitable thermometric property. (i) What is heat? (ii) What is meant by temperature? (iii)Give an example of a thermometric property. (iv) The SI unit of temperature is the kelvin. Give another temperature scale.
You can calculate the temperature from the recorded value of emf by using a. calibration curve. A thermistor is a semiconductor and its temperature decreases as its resistance increases. You can calculate the resistance of the thermistor and use a calibration curve to calculate temperature.
Calculate the energy transferred for each of these: 1. m = 0.5 kg and Δθ = 20 °C (for copper) 2. m = 2 kg and Δθ = 60 °C (for oil) 3. m = 40 kg and Δθ = 7.5 °C (for water) 4. m = 1.2 kg and Δθ = 0.5 °C (for air) 5. m = 2 kg and Δθ = 8 °C (for aluminium) 6. Challenge: m = 1 500 000 g and Δθ = 0.2 °C (for iron) 4 Material ...
C = q/mAT, where q = heat energy, m = mass, and T = temperature Remember, AT = (Tfinal — Tinitial). Show all work and proper units. Answers are provided at the end of the worksheet without units. 1. A 15.75-g piece of iron sorbs 1086.75 joules of heat energy, and its temperature changes from 25 0 1750C. Calculate the specific heat capacity of ...
Directions: Use the diagram below of the three temperature scales to answer the questions. Fill in the chart below with the correct answers: Celsius. Kelvin Fahrenheit. Boiling point of water ____ ____ ____. Freezing point of water ___ _____ ____. Absolute zero _____ _____ ________.
